I really like this addon and the simpleness of it and how low-key it is -- adding a lot of information without changing anything in the UI. Is it possible to show all of this information when also inspecting other characters? (Someone recommended Examiner, but I really don't like it, it bugs out quite a bit, but yours is fantastic!)

I've never had an issue with Examiner and it is updated for MoP. The gear button on that addon is what you are looking for. It displays the gear on someone in a list format, showing the enchants and gems very clearly. The bugging out you are probably talking about is some gear not loading on inspect. That is a Blizzard UI bug. Just type /inspect to "refresh" your view and all the gear should so up. The /inspect feature in the game has been buggy ever since Blizzard screwed it up at the end of Wrath (purposefully I believe to get rid of that awful GS).